Add Redis State Storage Support

[jkpe]

1. Redis State Storage

• Added Redis as an alternative to file-based storage for user preferences
• Implemented RedisStateStore class with full CRUD operations
• Added environment variable configuration for Redis connection
• Enhanced logging and error handling for state operations
• Updated relevant files to use Redis state management

Additional Updates

• Improved logging throughout the application with emoji indicators
• Updated app home text from "Bolty" to "Sailor"
• Changed loading message to "Adjusting the sails..."
• Enhanced error handling and logging in provider response generation
• Updated documentation in README.md to reflect new features

Setup

To use Redis storage:

1. Set the REDIS_URL environment variable:

export REDIS_URL=<your-redis-connection-string>

To use GenAI:

1. Set required environment variables:

export GENAI_API_KEY=<your-api-key>
export GENAI_API_URL=<api-endpoint> # defaults to https://api.genai.example.com/v1

Dependencies

• Added redis==5.2.1 to requirements.txt